Gazing at the vast sky on a dark, clear night is humbling. But what if your eyes could see infrared light? The view might look something like NASA’s new interactive map of the galaxy. GLIMPSE360 is a night-sky atlas assembled from over 2 million images taken by the Spitzer Space Telescope.

Because interstellar clouds block visible light, the infrared maps allow you to peer through galactic dust lanes and into the hearts of stellar nurseries. Familiar pan-and-zoom tools allow users to explore t...